Finding the Fourth Proportional to 487,023.30, 672,090.21 and 272,163.31
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Solution
The fourth proportional to 487,023.30, 672,090.21 and 272,163.31 is: 375,584.28
Step by Step Solution
- Step 1: Write the proportion equation
487,023.30 : 672,090.21 = 272,163.31 : x - Step 2: Convert to fraction form
487,023.30/672,090.21 = 272,163.31/x - Step 3: Cross multiply
487,023.30x = 672,090.21 × 272,163.31 - Step 4: Simplify right side
487,023.30x = 182,918,294,491.97 - Step 5: Solve for x
x = 182,918,294,491.97/487,023.30 - Step 6: Final answer
x = 375,584.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.